/* ODA site styles.
   Palette and type follow the blueprint (Part V): Altiplano ink, clay, quinoa gold
   on paper; Lora for headings, Source Sans 3 for text. Pages are static HTML built
   by scripts/build.py. */
:root{
  --ink:#1F3A5F;        /* primary */
  --ink-2:#2C4E7A;
  --clay:#9A5B3C;       /* labels, dates */
  --gold:#C9962E;       /* small marks only, never text */
  --paper:#FAF8F4;
  --surface:#FFFFFF;
  --tint:#F2EDE4;
  --rule:#E4DED3;
  --text:#2B2F36;
  --muted:#5D6470;
  --on-ink:#FFFFFF;
  --on-ink-muted:#C9D3E0;
  --serif:"Lora",Georgia,"Times New Roman",serif;
  --sans:"Source Sans 3","Source Sans Pro","Segoe UI",Helvetica,Arial,sans-serif;
  --w:1180px;
  --gut:clamp(16px,4vw,32px);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --ink:#A9C2E3;--ink-2:#C4D5EC;--clay:#D9A07F;--gold:#D9A845;--paper:#13171D;--surface:#1A1F27;--tint:#1E242D;
  --rule:#2E3540;--text:#E6E3DD;--muted:#A3AAB5;--on-ink:#0F1620;--on-ink-muted:#2B3A4E;color-scheme:dark}}
:root[data-theme="dark"]{--ink:#A9C2E3;--ink-2:#C4D5EC;--clay:#D9A07F;--gold:#D9A845;--paper:#13171D;--surface:#1A1F27;--tint:#1E242D;
  --rule:#2E3540;--text:#E6E3DD;--muted:#A3AAB5;--on-ink:#0F1620;--on-ink-muted:#2B3A4E;color-scheme:dark}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:24px}
body{background:var(--paper);color:var(--text);font-family:var(--sans);font-size:18px;line-height:1.6;margin:0;overflow-x:hidden}
img,svg{max-width:100%}
a{color:var(--ink);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--clay)}
:focus-visible{outline:2px solid var(--clay);outline-offset:3px;border-radius:2px}
h1,h2,h3{font-family:var(--serif);color:var(--ink);font-weight:600;line-height:1.2;margin:0;text-wrap:balance}
h1{font-size:clamp(2rem,4.6vw,3.1rem);letter-spacing:-.01em}
h2{font-size:clamp(1.5rem,2.8vw,2rem)}
h3{font-size:1.2rem}
p{margin:0}
ul,ol{margin:0;padding:0}
.wrap{max-width:var(--w);margin:0 auto;padding-inline:var(--gut)}
.wrap.narrow{max-width:calc(720px + 2*var(--gut))}
.prose{max-width:68ch}
.prose p+p{margin-top:1em}
.eyebrow{display:inline-block;font-size:.78rem;letter-spacing:.13em;text-transform:uppercase;font-weight:700;color:var(--clay)}
.eyebrow a{color:inherit;text-decoration:none}
.eyebrow a:hover{text-decoration:underline}
.muted{color:var(--muted)}
.small{font-size:.92rem}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:var(--on-ink);padding:10px 16px;z-index:50}
.skip:focus{left:12px;top:12px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:var(--on-ink);border:1.5px solid var(--ink);padding:11px 20px;border-radius:3px;font-weight:600;font-size:.98rem;text-decoration:none;line-height:1.2}
.btn:hover{background:var(--ink-2);border-color:var(--ink-2);color:var(--on-ink)}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:var(--on-ink)}
.btn.small{padding:7px 14px;font-size:.9rem}
.btn.gold{background:var(--gold);border-color:var(--gold);color:#1B1B1B}
.btn.gold:hover{filter:brightness(1.07);color:#1B1B1B}
.arrow{font-weight:600;text-decoration:none}
.arrow:hover{text-decoration:underline}

/* strip: this week's issue, on every page */
.strip{background:var(--ink);color:var(--on-ink);font-size:.88rem}
.strip .wrap{display:flex;gap:10px;align-items:center;padding-block:7px;white-space:nowrap;overflow:hidden}
.strip span{opacity:.85}
.strip a{color:var(--on-ink);font-weight:600;overflow:hidden;text-overflow:ellipsis;text-decoration:none}
.strip a:hover{text-decoration:underline;color:var(--on-ink)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--gold);flex:none}

/* header */
.site-head{background:var(--paper);border-bottom:1px solid var(--rule)}
.site-head .wrap{display:flex;align-items:center;gap:28px;min-height:84px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);margin-right:auto}
.brand .ring{width:40px;height:40px;color:var(--ink);flex:none}
.wm{display:grid;line-height:1.05}
.wm .name{font-family:var(--serif);font-weight:700;font-size:1.65rem;letter-spacing:.16em}
.wm .tag{font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-top:4px;font-weight:600}
.nav{display:flex;align-items:center;gap:22px;font-size:.98rem}
.nav a{text-decoration:none;color:var(--text);padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover{color:var(--ink);border-bottom-color:var(--rule)}
.nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--gold);font-weight:600}
.nav .btn{border-bottom:1.5px solid var(--ink);color:var(--ink);padding:7px 14px}
.nav .btn:hover{color:var(--on-ink)}
.nav .btn[aria-current="page"]{background:var(--ink);color:var(--on-ink)}
.lang{display:flex;border:1px solid var(--rule);border-radius:3px;overflow:hidden;font-size:.8rem;font-weight:700;letter-spacing:.06em}
.lang a{padding:5px 9px;text-decoration:none;color:var(--muted)}
.lang a[aria-current="true"]{background:var(--ink);color:var(--on-ink)}
.menu{display:none;position:relative}
.menu summary{list-style:none;cursor:pointer;font-weight:600;color:var(--ink);border:1px solid var(--rule);padding:6px 12px;border-radius:3px}
.menu summary::-webkit-details-marker{display:none}
.menu nav{position:absolute;right:0;top:calc(100% + 8px);background:var(--surface);border:1px solid var(--rule);box-shadow:0 10px 30px rgba(0,0,0,.08);display:grid;min-width:220px;z-index:20}
.menu nav a{padding:12px 16px;text-decoration:none;border-top:1px solid var(--rule)}
.menu nav a:first-child{border-top:none}
.menu nav a[aria-current="page"]{font-weight:700}
.menu-lang{display:none;border-top:1px solid var(--rule)}
.menu-lang a{display:inline-block;border:none!important;padding:12px 16px}
.menu-lang a[aria-current="true"]{font-weight:700;color:var(--clay)}
@media (max-width:960px){
  .nav{display:none}.menu{display:block}
  .site-head .wrap{gap:14px;min-height:70px}
}
@media (max-width:440px){.wm .tag{font-size:.5rem;letter-spacing:.12em}.wm .name{font-size:1.4rem}.brand .ring{width:34px;height:34px}.brand{gap:9px}.site-head .lang{display:none}.menu-lang{display:block}.menu summary{padding:6px 10px}}

/* hero */
.hero{border-bottom:1px solid var(--rule)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.9fr);gap:56px;align-items:center;padding-block:56px 52px}
.hero h1{margin-top:0}
.lede{font-size:clamp(1.08rem,1.6vw,1.24rem);color:var(--text);max-width:58ch;margin-top:18px}
.ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr;gap:0;padding-block:36px}.hero-fw{display:none}}

/* framework diagram */
.fw{margin:0;position:relative;padding-right:34px}
.fw ol{list-style:none;display:grid;gap:22px}
.fw li{position:relative;background:var(--surface);border:1px solid var(--rule);border-left:4px solid var(--rule);padding:10px 16px;display:grid}
.fw li.measured{background:var(--tint);border-left-color:var(--gold)}
.fw li:not(:last-child)::after{content:"";position:absolute;left:28px;bottom:-21px;width:2px;height:20px;background:var(--ink)}
.fw li:not(:last-child)::before{content:"";position:absolute;left:24px;bottom:-22px;border:5px solid transparent;border-top:6px solid var(--ink);border-bottom:0;z-index:1}
.fw .n{font-family:var(--serif);font-weight:600;color:var(--ink);font-size:1.08rem}
.fw .d{font-size:.9rem;color:var(--muted);line-height:1.35}
.fw .loop{position:absolute;right:6px;top:28px;bottom:calc(28px + 2.4em);width:26px;border:2px dashed var(--muted);border-left:none;border-radius:0 14px 14px 0}
.fw .loop::before{content:"";position:absolute;left:-6px;top:-6px;border:5px solid transparent;border-right:7px solid var(--muted);border-left:0}
.fw figcaption{display:flex;gap:8px;align-items:flex-start;font-size:.85rem;color:var(--muted);margin-top:14px;line-height:1.4}
.fw .key{width:12px;height:12px;background:var(--tint);border-left:4px solid var(--gold);flex:none;margin-top:3px}
.fw.big .n{font-size:1.2rem}

/* ODA Weekly band */
.weekly-band{background:var(--surface);border-bottom:1px solid var(--rule);padding-block:44px 36px}
.band-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px 24px;flex-wrap:wrap;border-bottom:2px solid var(--ink);padding-bottom:12px}
.band-head h2{font-size:clamp(1.5rem,2.6vw,1.9rem)}
.band-head .meta{color:var(--clay);font-weight:600;font-size:.95rem}
.wk-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1.4fr);gap:40px;margin-top:26px}
.pick{display:grid;gap:12px;align-content:start;text-decoration:none;color:inherit;background:var(--tint);border-top:4px solid var(--gold);padding:24px 26px}
.pick strong{font-family:var(--serif);font-size:clamp(1.4rem,2.4vw,1.8rem);font-weight:600;color:var(--ink);line-height:1.2}
.pick:hover strong{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.pick .teaser{color:var(--text)}
.pick .more{font-weight:600;color:var(--ink);font-size:.95rem}
.wk-cols{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.col-h{font-family:var(--sans);font-size:.78rem;letter-spacing:.13em;text-transform:uppercase;color:var(--ink);font-weight:700;padding-bottom:8px;border-bottom:1px solid var(--ink)}
.hl{display:grid;gap:4px;padding:14px 0;border-bottom:1px solid var(--rule);text-decoration:none;color:inherit}
.hl strong{font-family:var(--serif);font-weight:500;color:var(--ink);font-size:1.08rem;line-height:1.3}
.hl:hover strong{text-decoration:underline;text-underline-offset:3px}
.band-foot{display:flex;gap:26px;flex-wrap:wrap;margin-top:20px;font-weight:600;font-size:.95rem}
@media (max-width:900px){.wk-grid{grid-template-columns:1fr;gap:26px}}
@media (max-width:560px){.wk-cols{grid-template-columns:1fr;gap:20px}}

.label{display:flex;flex-wrap:wrap;gap:4px 12px;align-items:center;font-size:.74rem;letter-spacing:.11em;text-transform:uppercase;font-weight:700;color:var(--muted)}
.marker{display:inline-flex;align-items:center;gap:6px;color:var(--clay)}
.marker::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold)}

/* Perspectives band */
.persp-band{padding-block:56px;border-bottom:1px solid var(--rule)}
.persp-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:56px;align-items:end}
.persp-title{font-size:clamp(1.7rem,3.4vw,2.5rem);margin-top:12px;line-height:1.15}
.persp-title a{text-decoration:none;color:var(--ink)}
.persp-title a:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}
.dek{font-size:1.15rem;color:var(--text);margin-top:14px;max-width:62ch}
.byline{color:var(--muted);font-size:.95rem;margin-top:14px}
.persp-side{display:grid;gap:12px;border-left:1px solid var(--rule);padding-left:28px;justify-items:start}
@media (max-width:860px){.persp-grid{grid-template-columns:1fr;gap:24px}.persp-side{border-left:none;padding-left:0;border-top:1px solid var(--rule);padding-top:20px}}

/* generic blocks */
.block{padding-block:60px}
.tinted{background:var(--tint)}
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);gap:48px;align-items:start}
.two h2+p,.two .eyebrow+h2{margin-top:10px}
@media (max-width:860px){.two{grid-template-columns:1fr;gap:20px}.block{padding-block:44px}}
.block>.wrap>h2{margin-top:8px}

.pillars{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:28px}
.pillar{display:grid;gap:10px;align-content:start;background:var(--surface);border:1px solid var(--rule);border-top:3px solid var(--ink);padding:22px;text-decoration:none;color:inherit}
.pillar:hover{border-top-color:var(--gold)}
.pillar:hover h3{text-decoration:underline;text-underline-offset:3px}
.pillar p{color:var(--muted);font-size:.98rem}
.pillar .more{font-weight:600;color:var(--ink);font-size:.92rem;margin-top:4px}
.num{font-family:var(--serif);color:var(--clay);font-weight:600;font-size:1rem}
@media (max-width:1000px){.pillars{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.pillars{grid-template-columns:1fr}}

.portrait{width:132px;height:132px;border-radius:50%;background:var(--ink);color:var(--on-ink);display:grid;place-items:center;font-family:var(--serif);font-size:2.6rem;letter-spacing:.06em;flex:none}
.portrait.small{width:64px;height:64px;font-size:1.3rem}
.portrait.large{width:168px;height:168px;font-size:3.2rem}
.founder-card{display:grid;grid-template-columns:auto minmax(0,1fr);gap:40px;align-items:start}
.founder-card h2{margin:8px 0 12px}
.founder-card .btn{margin-top:20px}
@media (max-width:640px){.founder-card{grid-template-columns:1fr;gap:20px}.portrait{width:96px;height:96px;font-size:1.9rem}}

.pubs{list-style:none;display:grid;gap:12px;margin-top:14px}
.pubs li{padding-left:16px;border-left:2px solid var(--rule);font-size:.98rem}
.pubs.compact li{font-size:.94rem;color:var(--muted)}
.pub-groups h3{margin-top:30px}
.pub-groups h3:first-child{margin-top:18px}

/* subscribe */
.subscribe{background:var(--ink);color:var(--on-ink);padding-block:48px}
.subscribe h2{color:var(--on-ink)}
.subscribe p{color:var(--on-ink-muted);margin-top:8px;max-width:60ch}
.sub-grid{display:grid;grid-template-columns:minmax(0,1.6fr) auto;gap:32px;align-items:center}
.sub-actions{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.sub-actions .rss{color:var(--on-ink);font-weight:600}
.subscribe.compact{padding-block:36px}
.subscribe.compact h2{font-size:1.45rem}
@media (max-width:760px){.sub-grid{grid-template-columns:1fr;gap:18px}}

/* page heads */
.page-head{border-bottom:1px solid var(--rule);padding-block:52px 44px}
.page-head h1{margin-top:10px;max-width:24ch}
.page-head .lede{margin-top:16px}
.page-head .meta{color:var(--muted);margin-top:12px}

/* ODA Weekly issue page */
.issue-head h1{max-width:30ch}
.issue-layout{display:grid;grid-template-columns:270px minmax(0,1fr);gap:56px;padding-block:40px 64px}
.issue-side .sticky{position:sticky;top:20px;max-height:calc(100vh - 40px);overflow:auto;padding-right:6px}
.issue-side h2{font-family:var(--sans);font-size:.78rem;letter-spacing:.13em;text-transform:uppercase;color:var(--clay);font-weight:700}
.toc{list-style:none;margin-top:12px;display:grid;gap:2px;font-size:.92rem;line-height:1.35}
.toc a{display:block;padding:5px 0 5px 12px;border-left:2px solid var(--rule);text-decoration:none;color:var(--text)}
.toc a:hover{border-left-color:var(--ink);color:var(--ink)}
.toc .toc-h a,.toc .toc-pick a{font-weight:700;color:var(--ink);margin-top:10px}
.toc .toc-pick a{border-left-color:var(--gold);margin-top:0}
.issue-nav{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:22px;font-size:.92rem;font-weight:600}
.issue-main{max-width:760px}
.ednote-lead{font-size:1.1rem;padding-bottom:24px;border-bottom:1px solid var(--rule)}
.item{padding-block:28px;border-bottom:1px solid var(--rule)}
.item h3{font-size:1.38rem;margin:10px 0 12px;position:relative}
.item p+p{margin-top:12px}
.item .why b{color:var(--ink)}
.item .src{font-size:.92rem;color:var(--muted)}
.item .ednote{font-size:.92rem;color:var(--muted);font-style:italic}
.item.featured{background:var(--tint);border-top:4px solid var(--gold);border-bottom:none;padding:28px 30px;margin-top:28px}
.item.featured h3{font-size:1.7rem}
.anchor{position:absolute;left:-1.1em;color:var(--rule);text-decoration:none;font-family:var(--sans);opacity:0}
.item:hover .anchor,.anchor:focus{opacity:1}
.stream-h{margin-top:48px;padding-bottom:10px;border-bottom:2px solid var(--ink);font-size:1.5rem}
.editorial{margin-top:48px;padding:24px 26px;border:1px solid var(--rule);background:var(--surface)}
.editorial h2{font-size:1.2rem}
.editorial p{margin-top:10px;color:var(--muted)}
@media (max-width:900px){.issue-layout{grid-template-columns:1fr;gap:12px}.issue-side .sticky{position:static;max-height:none}.issue-side .toc{display:none}.issue-side h2{display:none}.issue-side .issue-nav{margin-top:0}.item.featured{padding:22px 20px}}

/* Perspectives post */
.post-head{padding-block:56px 36px;border-bottom:1px solid var(--rule)}
.post-head h1{font-size:clamp(2rem,4.6vw,3rem);margin-top:12px}
.post .body{padding-block:36px 8px;font-size:1.1rem;line-height:1.7}
.post .body p{margin-bottom:1.15em}
.post .body h3{font-size:1.4rem;margin:1.6em 0 .6em}
.post .body > p:first-child::first-letter{font-family:var(--serif);float:left;font-size:3.4em;line-height:.9;padding:6px 10px 0 0;color:var(--ink);font-weight:600}
.refs-wrap{padding-block:16px 56px}
.refs-wrap h2{font-size:1.25rem;padding-top:24px;border-top:1px solid var(--rule)}
.refs{margin-top:14px;padding-left:22px;font-size:.92rem;display:grid;gap:8px;color:var(--text)}
.design{display:inline-block;font-size:.76rem;letter-spacing:.06em;text-transform:uppercase;font-weight:700;color:var(--clay);background:var(--tint);padding:1px 7px;border-radius:2px;margin-left:4px}

/* tables */
.tbl{overflow-x:auto;margin-top:18px}
table{border-collapse:collapse;width:100%;font-size:.98rem;font-variant-numeric:tabular-nums}
th{text-align:left;font-size:.76rem;letter-spacing:.11em;text-transform:uppercase;color:var(--muted);font-weight:700;padding:10px 12px;border-bottom:2px solid var(--ink)}
td{padding:14px 12px;border-bottom:1px solid var(--rule);vertical-align:top}

/* research, about, founder */
.lines{display:grid;gap:0}
.line{display:grid;grid-template-columns:72px minmax(0,1fr);gap:20px;padding-block:30px;border-bottom:1px solid var(--rule)}
.line .num{font-size:1.6rem}
.line h2{font-size:1.5rem}
.line h2 a{text-decoration:none}
.line h2 a:hover{text-decoration:underline}
.line p{margin-top:10px;max-width:70ch}
.side-box{background:var(--tint);padding:22px 24px;border-top:3px solid var(--ink)}
.side-box h2{font-size:1.1rem}
.plain{list-style:none;display:grid;gap:8px;margin-top:12px}
.dists{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin-top:24px}
.dist{border-top:3px solid var(--gold);padding-top:16px}
.dist p{margin-top:8px;color:var(--muted)}
@media (max-width:860px){.dists{grid-template-columns:1fr}}
.founder-mini{display:flex;gap:16px;align-items:center}
.founder-head{display:grid;grid-template-columns:auto minmax(0,1fr);gap:36px;align-items:center}
.ids{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
@media (max-width:640px){.founder-head{grid-template-columns:1fr;gap:18px}.portrait.large{width:110px;height:110px;font-size:2.2rem}}
.empty-note{border:1px dashed var(--rule);padding:40px;text-align:center;font-family:var(--serif);color:var(--muted);letter-spacing:.1em}
.contact-line{font-size:1.3rem;font-family:var(--serif)}

/* footer */
.site-foot{background:var(--surface);border-top:1px solid var(--rule);padding-top:48px;font-size:.95rem}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.4fr;gap:36px}
.site-foot h2{font-family:var(--sans);font-size:.76rem;letter-spacing:.13em;text-transform:uppercase;color:var(--clay);font-weight:700}
.site-foot ul{list-style:none;display:grid;gap:8px;margin-top:14px}
.site-foot ul a{text-decoration:none}
.site-foot ul a:hover{text-decoration:underline}
.site-foot h2+p{margin-top:14px;color:var(--muted)}
.foot-brand .ring{width:34px;height:34px;color:var(--ink)}
.foot-brand p{margin-top:10px}
.copy{border-top:1px solid var(--rule);margin-top:40px;padding-block:18px;color:var(--muted);font-size:.85rem}
@media (max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.foot-grid{grid-template-columns:1fr}}

@media print{
  .strip,.site-head nav,.lang,.menu,.subscribe,.site-foot,.issue-side,.anchor{display:none!important}
  body{background:#fff;font-size:11pt}
  .issue-layout{display:block}
  a{color:inherit}
}